ST-160 Injector Adapter for External Low Cracking Pressure Check Valves
Unlock the full potential of your ST-160 Suttner injector.
The Flomix ST-160 Injector Adapter has been specifically engineered to allow the installation of an external low cracking pressure, high-flow check valve, significantly improving injector performance and chemical draw.
By replacing the restrictive internal check valve with a premium external low cracking pressure check valve, users can achieve 20–30% higher chemical draw rates, depending on pump flow, pressure, and injector configuration.
Key Features
- Up to 20–30% Increased Chemical Draw
Optimised flow path combined with a low cracking pressure check valve delivers substantially higher injector performance. - Premium Stainless Steel Construction
Precision CNC-machined from high-quality stainless steel for superior corrosion resistance and long service life. - Designed for ST-160 Suttner Injectors
Directly adapts the injector to accept an external high-flow check valve. - Improved Reliability
External check valves are easier to inspect, clean and replace, reducing maintenance time and improving system reliability. - Lower Flow Restriction
The larger flow path minimises pressure loss, allowing the injector to perform more efficiently. - Multiple Thread Configurations Available
Manufactured in a range of thread sizes to suit various injector and plumbing configurations.
Benefits
- Increases downstream chemical draw by 20–30%
- Compatible with low cracking pressure, high-flow check valves
- Improves injector efficiency and chemical application
- Easy installation with no injector modifications required
- Built for demanding commercial soft wash and pressure washing applications
Upgrade your ST-160 injector with the Flomix External Check Valve Adapter and maximise your downstream performance with greater chemical draw, improved reliability, and easier servicing.


